Machine for making brushes.



G KLEEMANN MACHINE FOR MAKING BRUSHES.

APPLICATION FILED AUG.5, 1910.

Patented Sept 17, 1912.

5 SHEETS-SHEET 1.

INVENTOR GEORG KLEEMANN fiVOuSMM ATTORNEY G. KLBEMANN.

MACHINE FOR MAKING BRUSHES.

APPLICATION FILED AUG. 5, 1910 Patented Sept. 17, 1912.

6 SHEETS-SHEET 2.

ATTORNEY G. KLEBMANN. MACHINE FOR MAKING BRUSHES. APPLICATION FILED AUG. 5, 1910.

5 SHEETS-SHEET 3 WITN 5/55 tuvzu-ron I W GEoRe KLEEMANN ATTORNEY Patented Sept. 17, 1912.

r G. KLEEMANN.

MACHINE FOR MAKING BRUSHES.

APPLIOATION FILED AUG. 5, 1910. 1,038,763. Patented Sept. 17,1912.

5 SHEETS-SHEET 4 WITNE 5E5 :NVENTOR GEORG KLEEMANN wawpqi-muubf ATTORNEY G. KLBEMANN.

MACHINE FOR MAKING BRUSHES.

APPLICATION FILED AUG. 5, 1910.

1,038,763. Patented Sept. 17,1912.

5 SHEETS-SHEET 5.

I VEN-roR GEORG Km: MANN BY jwwww A To RN EY automatically drawing tufts ATENT OFFICE.

GEORG KLEEMANN, OF STUTTGART, GERMANY.

MACHIN E FOR MAKING BRUSHES.

rosarca.

Specification of Letters Patent.

Application filed August 5, 1916. Serial No. 575,789.

new and useful Improvements in Machines for Making Brushes; and I do hereby de-- clare the following to be a full, clear, and:

exact description of the invention such as will enable others skilled in the art to which it appertains to make and use the same.

This invent-ion relates to machines for.

of brush material into brush blocks and has for its ob ject to provide a machine which will automatically and finely 'fix the tufts in the brush in a convenient reliable and efficient manner.

In the accompanying drawings: Figure 1 is a side view of the new machine supporting a brush block shown in section. Fig. 2; is a plan view of the machine. Fig. 3 is a lateral. section along line AB of Fi 1. Fig. 4 is a lateral section along line C l) of Fig. 1. Fig. 5 shows in lateral section the;

clamping and tensioning device in its operai tive position. Figs. 6 and 7 show in part-i-ally sectional lateral views the gripping; jaws in .closed and open position respectively. Fig. 8 shows a frontview of the tuft. dividin device.

ber of eccentrics and the like sets the different devices of the machine in motlong.

The wire a to be worked, and which serves to draw the tuft 1) into the prepared brush; block 0, is wound upon a loose rotatablef reel 7, and runs through a clamping-device} over a guide roller 8-to the ordinary needle-j 6. The latter is fastened in a horizontally movable head 5, which is .given a reciprocating motion by the driving shaft 2 w th the aid of the eccentric disk 68 and a rod 3,;

as well as of a lever 4. In order to placej 6, which is such manner that the path of the roller 9 Fig. 9 represents .a side] view. Figs. 10 and 11 explainin two differ- 15 is-a plan view;

the wire a from the guide roller 8 before the needle 6 (Fig. 5), a roller 9 is provided which is carried, for example, by a bellcrank lever 10, which is operated by the driving shaft 2 by means of a link bar 11 and a lever 12, which latter turns about a pivot 13. The roller 9, according to the present invention, diverts the wire as little as possible from its original direction and simultaneouslypresents it before the needle provided with an open eye 6", in

crosses the needle 6 but forms the slightest possible angle with the path of the needle. If this latter moves forward it carries the wire a with it and guides it into the jaws 34, 34', of the pliers 33 where the-needle 6 enters the guide 46 serving also as a guard plate (Figs. 1 and 4). Here the wire is first spread open (Figs. 1, 4 and 10) and for this purpose a spreading device is provided which consists of pointed jaws 42 and is formed like pliers, position by a spring 67. The jaws 42 are carried by a sliding arm 44, which is pushed forward by the driving shaft 2 acting through a lever 45, or the 'like,'and a cam 70. By this means the points of the jaws 42 enter the loop of the wire a While the jaws 42 simultaneously come in contact with a suitably, formed wedge shaped stop 43 which spreads them apart and hence opens,

out the loop, so that a tuft b can be inserted therein. The latter operation proceeds in familiar fashion and for this purpose the,

tufts lying in a receptacle 55, or the like, are separated and inserted by pliers 56, 85 into the jaws 34, 34. The separating of the tufts is effected as follows. (Figs. 1, 4, 8 and 9.) Into the receptacle 55 a disk 71 projects from beneath which is rigidly mounted upon a shaft 73 placed in a frame 72. Upon this shaft a lever arm 74'is provided, which, by means of a rod 75 and a two armed lever 76 rocking about a pm 77, isconneoted with a cam 78 and is actuated thereby. Moreover the frame 72 is providedwith 'an eccentrically formed groove 79 in which slides a pin 80 the arm. 81 of whichrooks about a pin 82 of the disk 71. Upon the .pin 82 there 'is also an arm 98,

and the end of the arm 98 is formed as a Patented Sept. 1'7, 1912.

being held in the closed finger .84, while the disk 71 is provided with a depression 83,.so that upon the turning of the disk 71 the finger 84 grasps from the.

receptacle 55 no more of the brush material than the depression .83. can receive..- Then the disk 71 is turned back so that the finger 84 and the depression 83 .lie'outside of the 6 receptacle 55, while pliers 56, 85 grasp the brush tuft.

The pliers consist essentially of the pivotally arranged claw member 56, and of the depressible claw member 85 which slides in the claw member 56 and is subject to the, influence of a spring 86, andcarries a rollcri 87 at itsupper end. The movement of the pliers 56, 85 is effected from the driving shaft 2 by means of a rooved disk 62 and an arm rovided with a pin 88,;which arm is r1g1 y tioned in the machine frame 1. Theshaft 61 rocks an arm 60 in which the pliers 56, 85 are ositioned, so that the latter upon the rocking of the shaft 61 are swung backward and forward (Fig. 2) from the jaws 34,34,

' to the receptacle 55, or vice versa. S1nce the pliers, 56, 85 must open when recelvlng a?) well as when discharging the tuft, a suit- 3.1

vwhibh runs the roller 87 which at the proper moment is depressed against the actlon of the spring 86, whereby the claw member 85' is lowere (Fig. 7 Finally the pliers 56,

o 85'must be so guided that the brush tuft is.

front of'the jaws 34, ose a guide 58 with ed in' which 'moves a presented exactlyin 34. For this pur curved endis, provi pin 57 of an arm and. thereby of the pliers 56, 85. The grasped tufts I), upon being inserted, pass over a comb 63 or the like, by which they are at cleaned.- One jaw 34' is ion other jaw 34 (Fig. 2),-.and t e jaw 34' serves to guide the tuft, fed by the pliers 56,.85 into t e jaws 34, 34. In place of the rolon or the like,

oelve the tuft b are formed on p ers 33 comprising two arms which rock about pins 35 and are held closed by a spring 37, and rest upon a in 36 which prevents complete closing of tiiejaws. The 'aws 34, 34 are hollowed out funnel shape in which hollows the bent tuft rests until they reach the brush block. At the rear end the arms of the pliers 33 have wed e shaped projections 65 which, in theirbac ard motion strike against stop pins 66 thereby opening the jaws (Fig. 2). According to the present invention the jaws 34, 34 are loosely movable and can be moved backward and forward, and for this purpose are arranged upon a carriage38, which slides in the machine frame 1 (Fig. 4). Theforward movement is eflected by the drawing in of the wire and against the action of a spring 41 which exerts a retarding influence. The

than the prolonged mounted on a shaft '61 posicurved slide bar 90v is provided upon- 91 of the claw member 56,. effects the necessary movement the same time d jaw 34' a special cam 97 could be equally well employed. The jaws 3.4, 34 servin to re-.

backwardmovement is effected by the drivplished by means of a cam 92 and a bellfork like end of the lever 40 engaging a [in 39 of the carriage 38 and moving it ackward. together with the jaws 34, '34. Wire clamps are also provided, only one of which comes into action at thecommencement of the operation, while the other prevents the unwinding of the wire from the reel 7 when the supply of wire in front of the needle is drawn taut. (Fig. 5).

' The first clamping device (Figs. 1, 3, 5 and 14) consists of a lever arm 31 which turns about a pin 32 and is positioned eccentric to the pivot pin of the lever 10, so that asa gripping of the wire which has been forced through a plate '52 of the machine frame 1 so that .the free end a of the wire a is held .fast a getherwith the tuft while the tuft-is being drawn into the Upon drawin in asecond tuft into the second hole of d of the wire is withdrawn fromthe clamp 94, 95, and the latter is not in operation for all remaining holes of the same brush. Upon swinging the-roller 9 the wire a is brought through which "also passes the needle .6. Now the second vided, which works at each operation, for the purpose of preventingunwindingof the 1, 3, and 5). This consists chiefly of the rigid jaw 16 mounted on the end of a lever sists of a movable jaw 17 which cotiper'ates with the jaw 16 and, pivoted on a pin 18 is positioned on the lever 15. The clamping device is set in motion by the driving shaft 2, for example, by means of the'lever 12. For. this purpose an arm 22 is provided which also rocks about the pin 14. This arm 22 is connected by a link-bar 28- with ing the lever 12. Through the upper end 23 of the lever 22 passes a link-bar 20, which is connected by a pin 19 with the clamping jaw 17, and a spring 21 is inserted'between lever 22. Now if the lever 22 is swung back it carries with it the lever 15 at the same time clamping the wire. Due to the action of spring 21, the lever 15 is arrested in a determined position, while the lever 22 continues to move and the tension of the wire, relieved by spring 21, does not increase considerably. To arrest the lever 15 jaw, presses the free'end (I the brush block against'an abutment. 95 of brush block (Fig. 14).

'to a slot 30 of a curved plate 29 clamping device is pro- 1 ing shaft 2, and is, for example, accomcrank lever 40 rocking about a pin 93, the

the roller 9 during its movement runs upon e brush block 0, the free end wire from the reel 7, upon drawing taut the wire'lying in frontof the needle 6... (Figs. 1'05 15 swinging about shaft 14, and further con-.

the lever 12, so that it is moved upon swingthe head of this rod 20 and the end 23 of the it is provided with a pawl 26 which is subject to the influence of a spring and cooperates with a curved rack '64. Before swinging back the lever 15 (Fig. 1) the pawl 26 is held by its spring 27 out of engagement with the teeth of the curved rack 64 and a. pin 24 of the lever 22 lies in a notch 25 of the pawl 26. Now if the parts have arrived at the position shown in Fig. 5 and the lever 15 has met with some resistance from the clamping action, the pin 24 of the lever'22 leaves the notch 25 of the pawl and runs upon its free arm. But the pawl 26 is thereby rocked and brought into engagement with the rack 64 whereby the lever 15 is arrested. Upon the return the movements are completed and reversed, so that the pawl again becomes free and the parts can all be swung back.

Now in order to prevent the bristles of a tuft I) already inserted from being pressed in the jaws 34, 34 and jammed when the next tuft is inserted, a guard cap 47 is provided which covers the jaws'34, 34 and by means of its pin 48 is mounted axially movable in a bushing 49 of the machine frame 1. (Figs. 1, 4, 12 and 13). The cap 47 is subject to the influence of a spring 50 and is provided with a pin 51, which engages in a slanting groove 96 of the bushing 49, so that the cap 47 upon pressing against the brush block is simultaneously rotated and releases the, tuft just inserted. Finally a spring 54 is provided (Figs. 1 and 3) which insures the guiding of the wire a under the clamping lever 31.

The manner of operation is as follows: After the operator has pressed the wire running from the reel 7 between the jaws 16 and 17 of the lever 15, wound it around guide rollers 8 and 9 and from below has placed it in the eye of the needle projecting in its extreme position over the plate 52, he passes the free end of the wire between the spring 54 and the lever 31 into the clamping jaws which are formed by the lever 31 and the abutment 95 of the plate 52, and, after he has placed the brush block as indicated in Fig. 1, he starts the machine. Theneedle moves forward and, since the end 01 of the wire is clamped fast, wire is drawn from the reel 7, and the needle carries the wire to the jaws 42 which pass into the loop of wire, whereupon the needle returns into the plate 29. Then the pliers 56, 85 bring into the loop (Figs. 4, 10 and 11) the tuft 71 separated out of the receptacle 55 and bend it by means of the prolonged head of the gripper member 34' into U-form. Simultaneously the jaws 42 return to their position of rest. The wire, while the clamping jaws 16, 17 and 94, 95 are held fast is drawn by, the roller 9 by means of the lever 10 and by the movement of the lever 15. In this way the tuft b is drawn into the jaws 34, 34 in,

which it remains until the gripper members reach the brush block. In this way the tuft b is drawn into the jaws 34, 34, in which it remains until the gripper member reaches the brush block, while during insertion of the tuft b the spring 41 exerts a checking effect. Then the gripper members, which hold the tuft fast, open, and the tuft is drawn by the wire into the brush block. The drawing in lever, the pliers 56, 85 and gripper member 34, 34 then return to their positions of rest. The operator then draws the free end of the wire from the clamp 94, 95, and manually brings the next hole of the brush block 0 over the projecting needle point, starts the machine again, and the operation is repeated, the needle carrying to the jaws 42 the wire brought over it from the roller 9. The operator has only to move the brush block upward from hole to hole, and to start the machine. As shown in Fig. 16 the ends of the wire of a finished brush are wound several times about the drawn in wire, making it sufiiciently secure. a

I claim:

1. In a machine for making brushes, means for supporting a brush block, a loosely movable pliers feeding tufts of brush material to the block, a retractile s ring retarding the forward movement of the pliers, in combination with means for passing loops of wire through the brush block and means for causing the wire to draw the tuft into the brush block.

2. In a machine for making brushes, means for supporting a brush block, movable jaws adapted loosely to hold tufts of brush material, a spring maintaining the jaws in a yieldable condition, means for passing loops of wire through the brush block and to cause the wire to embrace the tuft, means for drawing said wire taut,

thereby forcing the jaws against and the tuft into the brush block, in combination with a retractile spring retarding the forward movement of the jaws until the tuft is firmly fixed in the block.

3. In a machine for making brushes, means for supporting a brush block, loosely movable jaws adapted to feed tufts of brush material to the brush block, one of the jaws being prolonged and forming a stop for the brush material while the tuft is being formed and means for securing the tufts in the brush block.

4. In a machine for making brushes, means for supporting a brush block, loosely movable pliers having jaws for feeding brush material to the block, means for moving the pliers forward and back, incllned planes located in the path of the pliers, in v combination with means attached to pliers adapted to engage the inclined planes and to open the pliers. I

5. In a machine for making brushes, means for supporting a brush block, a movable pliers having jaws adapted to loosely hold tufts of brush material, a reciproca- 5 tory needle, means for placin a wire acrossthe path of the needle at as at an angle as possible to said path whereby 100 s of the. wire are passed through the bloc by the; needle means forplacing the tufts in said loops, means for drawingsaid wire taut and.

\iorcing the jaws against the brush block and the tuft into the brush block. g 6. In a machine for making brushes, means for supporting a "brush block, a

loosely movable pliers adapted to feed tufts of brush material to the brush block, means for placing loops of wire through the block; clamp jaws for gripping the wire, a piv-Q oted lever on which the clamps are mounted,

one fixedly, the other movable, in combination with a mechanically controlled arm for closing the clamp jaws.

7. In a machine for making brushes, means for supporting a brush block, a

loosely movable pliers adapted to feed the tufts of brush material to the brush block,

- In testimony whereof I aflix my signature, in presence of two witnesses.

GEORG KLEEMANN.

Witnesses HERMANN WIETHr'ioHTER,

FRANZ GANORZ. 

